| PS | a genus of Stromateidae |
|---|---|
| PS | a sociologist who studies election trends |
| PS | the branch of sociology that studies election trends (as by opinion polls) |
| PS | a genus of Polyodontidae |
| PS | fish of larger rivers of China similar to the Mississippi paddlefish |
| PS | a genus of Bothidae |
| PS | a large brownish European flatfish |
| PS | a genus of Soleidae |
| PS | common flatfish of North American Pacific coast |
| PS | a person who makes deceitful pretenses |
| PS | chorus frogs |
| PS | moths whose larvae are armyworms |